Distributed Biosignal Sensors for Local Signal Quality
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Solution Overview
Problem
Existing biosignal measurement devices often fail to provide a comprehensive grasp of diverse biosignals due to limited attachment points, leading to increased user stress and difficulty in obtaining suitable waveforms for analysis.
Innovation Solution
A biosignal measurement device with biopotential and bioinformation acquiring parts attached at separate portions of the user, including biopotential sensors on the auricle, head, shoulder, and back, and bioinformation sensors on the neck, capable of measuring electroencephalograms, electrocardiograms, electromyograms, blood pressure, plasma glucose, pulse, and body surface temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple biosignal measurement functions are integrated into a single device attached at one location, then the device can comprehensively measure diverse biosignals, but the device complexity and weight increase, causing increased user stress and discomfort
Solution Approach 1:
The measurement device is segmented into multiple independent measurement units, each capable of measuring specific biosignals. These units are distributed and attached to different body locations rather than consolidating all functions in a single device, thereby reducing the complexity and weight at each attachment point while maintaining comprehensive measurement coverage.
Solution Approach 2:
The patent transitions from a single-location multi-function device to a multi-location distributed measurement system. By adding the spatial dimension of distribution across multiple body parts (ear, neck, chest, etc.), the system achieves comprehensive biosignal coverage without concentrating complexity in one device.
2Adaptability or versatility
If multiple biosignal measurement functions are integrated into a single device attached at one location, then the device can comprehensively measure diverse biosignals, but the weight increases, causing increased user stress and discomfort
Solution Approach 1:
The measurement device is segmented into multiple independent measurement units, each capable of measuring specific biosignals. These units are distributed and attached to different body locations rather than consolidating all functions in a single device, thereby reducing the complexity and weight at each attachment point while maintaining comprehensive measurement coverage.
3Device complexity
If all sensors are attached at a single location, then the device structure is simplified, but it becomes difficult to obtain suitable waveforms for comprehensive biosignal analysis
Solution Approach 1:
Different measurement units are attached to body locations that are locally optimal for measuring specific biosignals. For example, the ear is used for EEG, the neck for ECG and blood pressure, and the chest for respiratory signals. This local optimization ensures high measurement quality for each biosignal type while the overall system remains relatively simple.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables suitable measurement of biosignals at their respective signal sources, reducing the number of sensors and device weight, thereby minimizing user stress and improving the measurement quality and comfort.
Implementation Method 1
a biopotential acquiring part (12) provided with a biopotential sensor (18)
Implementation Method 2
the bioinformation acquisition sensor (24) includes a photoelectric sensor
Data Source
Figure 1
Figure 2a~2c
Figure 3
AI summary
A biosignal measurement device able perform measurement at a suitable portion corresponding to the biosignal to be measured, that is, a biosignal measurement device to be worn by a user, comprising at least one earpiece housing 12 having a biopotential sensor and a board housing 16 having a photoelectric sensor 24 for acquiring a biosignal other than the biopotential as bioinformation, the earpiece housing 12 and board housing 16 being attached at separate portions of the user.